*NOTE:* There are several new form controls called "content controls" that
are available in Word 2007 - 2013 for creating form fields. At the present
time, JAWS does not work with forms created with the newer content
controls. Microsoft is aware of this and they are working towards a better
solution. Therefore, these instructions show you how to use legacy controls
within Word to create accessible forms.

Freedom is a good source, but I would have liked to have found a Microsoft
reference. I haven't come across one yet (there may be in their forums).